Sheets-shfet i



f. SMPTE,

SHOCK PRH/ENTER FOR VEHECLES AND TH?, LIKE. mwumrlow mw 1MM 2L E915.

l 1 96,1 66. A 1mmw11mg-. 29, 1916.

wsNEssEs: w INVENTUR J @fm BY Y , -zwfw ATTORNEY Paentm Aug. 29, 1916.

x W INVENTUH ATTUHNEY FRED SEITE, F SPRD'SDALE, CGNHECTICUT.

SHQCK-PT'EVENTER FOR VEHICLESIAN'D `'HIE LIKE.

Liegi-foo meme f nommen f Patented nog. eo. i916.

Appimtion nieu sammy ai, init. seriali no. ,soi.

To all whom it may concern Be it known that I, Fanninrm, a citizen of the United Stnt, resi ing at Springdale, in the county of F airfield and State of Connecticut, have invented certain new and useful Improvements in 'Shock-Preventas for Vehicles and the like, o which the Fol lowing is n specification.

M invention relates to shock preventeie or a )sorbers which are so arranged between the body and'wheels of a. vehicle as .t0 freely permit movement of the wheels toward. or -an'ay from the hodr, in response to abrupt changesin the road surface, while tending to maintain the body at the level it occupied before the ascent or descent of the wheels, ,until the return of the latter to their normal postion in relotionto the body.

Under my conception, when the wheels drop into a hollow or dcpession noti 'onlv should the bod not be drnmld own wi them, but it s ould, in practical effect.; be supported in its original plane. Indeed, in one forni of apparatus by which suoli conception may be carried into practical effect, the wheels are virtually aided in their deQ scent into the depression, this boing an incident of the operation of maintaining the body at approximately its lcvel'prioi' tosucli' descent.

One/form in which the invention may be# employed to carry ont the rinciple involved herein is Iillustrated in. t e accompanying drawings `in which;

Figure 1 is ii side elevationr and Fig. 2 a plan vicwol a shock preventer ndaptedjor a plirotion to a motor vehicle, Fig 3:15 a pliin view, and Fig". 4 an elevation of such a. devicepmvided, however, with means of adjustment tube later referred to, and Figs. 5 and 6 are views, largely din l illustrating the theory of operation of my device.

Refeirin first to Fi'g. 5, the vehicle body is indient with, the ywhile a similar-:arm is riga;-v idly connecte to, aiidmoves with` the wheels. These` arms carry wedge-shaped shoulders c, d nor-molly directlp1 opposite' animatie,-

at A and the wheclant B. An arm C is ri 'dlyconne'oted to, and' moversl pn.. relatively to each other. In this diaaromatic view, the vehicle is su posed to ie progressing in' the direction in icated by the adjacent arrow. When `the wheels drop into the depression vindicated in the fi re, .there is, of course, relative moremenhiith vertically and horizontally, of the wedgesbnped shoulders c, .fliundcr the influence of the springs, oi' other medium, tending to vdran' the, supports therefor toward each other. The apex of the shoulder rl rides past theconceponding .apex of the, shoulder c and the upper surface thereof rides along the lower surface of the shoulder c. This morement is strongly accelerated by. the springs, or other corresponding medium, with the result that `the movement of the wheels B instead of being reproduced in similar movement of the body A is not so re iroduced, butI on the contrary, upwardl ting; pressure is applied to the body tendingto maintain it in equilibrium despite the downward movement of the wheels. Such downwnrd'morenient of the wheels is in this instance eren accelerated by the couction of the wedgeehaped shoulders lc d under the influence of the springs e or other medium.

4 Anothciaapplication of the saine principleis illustrated in Fig. (i in connection with tlieeemi-elliptcal spi-ing of a motor vehicle to the cnos of which are pivotally secured two arms I", G, :the former bearing at its end a. wedge-'shaped shoulder f on the latter bearing at itsend a wedge-shaped shoulder ,1, thesey shoulders and the arm's upon which they are here shown as formed boing Spring pressed' toward cach otlierhying movemontof the spring (and therefore f of the ends,thereof), moi-ement of the body toward ,the chassis tending vto flatten the spring and therefore to increase'the distance between itev ends, Iwhile movement ofy the 'body away from 'the' chassis tends to accentuate thc cin-rature ofthe spring a nd therefore t'o decrease the distance between its ends. l'n this'instaiice, 'the coaction ofthe wedgoshaped shoulders g, under the ini'lucnco'of the spi-ing l, or other corres mnding medium, in essentially the same as tint of'tlir \\'l'.dge-siin[wil shoulders o, d in Fig. under thc Same influence and conditions-i allori' dcsoriixd,

Turning now to the dow'iption o n commarcial form in which the principle thus explained may be employed l, 2 represent two arms having enlnr ed heads 3, 4, the ends distant thereirom eing suitably perfornted for coaction with shackles or other devices whereby the erm 1 muy be pivotally secured to the vehicle body und the arm 2 to the charms. The enlarged hoed 3 of the member l xs provided with n control boss 5, und the enlarged head lof the member 2 with :i similar 'boss these bosses being erfornted to receive u stub-shat 7 hnvin earl 8 outside the part 8, the other end o? said stub-shrift being yhere shown es `provided with a washer 9 und nut end iam-uut 1.0 :uid 11'. 9 and the outer face of the enlnr head fl of die member 2 is a strong coi ed spring 12 under tension and therefore tending strongly to press the beads 3,` 4 together. ln this embodiment of the invention, each of the heads is shown ne provided upon its inner face with two wedge-:shaped ehoulders geen asthose heretofore described, E the shoulders 13 being secured upon the inner face of the head 3, equally distant from the center of said headuml the .shoulders 14 bein# secured u on the inner foce. of the headset. und equa ly distant from the center thereof. These shoulders are so arranged that when the arms 1, 2 ure in their normal and' usual position (re resenting there fore the normal und usua position of the body of the vehicle relatively to the chassis), A

the spices of the shoulders will be in contuct and in position to be readil lelntively" to euch other in manner ereinbe fore described. he precise Vform of the coasting surfaces 'of auch shoulders in not of importance except mso for, in the preu-A eut example, es involves the requirement that they be of aber dimension at their hoses than at their o icas. Such upoes muy be sharp and pointe or asiuclieitted inthe drawings, .slightly r ended. The latter form muy be prefer-re both for sxnootlmess n1 operation and in view of verxetiom in the loud oui-rior by the vehicle body.

In Fi fs. 3 und I have shown the weil shaped snoulclers 13 :is mounted, not directly upon the enlarged head 3 of the erm l, but upon the enlarged head .l5 of an umile? :mi: 1.6 mounted, like. the enlarged head. upon the stubehat 7 and in contempt-with the head 3. This auxiliar, armrend its head 15, are made adjustable ativelv to the erm 1 unil its head 3 ineny suitaole manner. For cxum le, the outer oud thereof may be perfor-utc to receive o stud l? the threaded shank of which 18 protrudes through o slot 19 lo the arm l, its end wceivm da. wing n U2, 12, whereby the arm 1 und uux lary om 1F- muy be clamped immovably together. The :uh-'animee of such moons of udgustment s that loss can need be exercised in seem interposed between the vroeher moved,

' plie shall be direct y opposite euch other, with their apices i contact, the shoulders being ready to move relatively to eaoh'other in corrpondenoe with movement of the body and chassis es heretofore described.

As will readily be understood, the mode of operation of this commercial form of the device is that heretofore explained in connection with the demription of Figs. 5 and 0. As the wedge-shaped shoulders are moved relatively to each other, auch movement taking illace under the influence of the spring, or o er medium by means of which said shoulders and the parte by which they are cnrried'ara strongly pressed together, suchA movement is utilized, 1n manner above indicated, to maintoiutlxe equilibrium of the body, regardless of movement o the wheels `or the ohnseis relatively therein When, for

egcample, the wheels drop into u depression Simultaneously such movement of the wheels is accelerated, lau coloration corresponding movement Vof the body is opposed und the degree of auch ac. colei-ation and opposition Ymay be vxried lvithin wide limits-by increasing or decrees mgytho tenion of the spring '12, or such ot er device (as for example en ehstic block) as may be employed furthe same purpose. It m11 also be understood that the sumo eil'oct (that of muinteinin the equilibrin-m o'f the body) Viis accomplis ed b the construction described whether the w oels encounter o depression or an elevation In the latter case, it is the upward movement of the wheels which is accelerated, but as un incident of auch acceleration, the body, instead of beinq'permitted or foroedto correspondinglyrlse, is, by means of the coaction of e wedge-shaped shoulders, restrained from so ning. Moreover, regard lees of the direction m which, due to the movement of the wheels, there m n tendono of the body to move the restrain upon suc movement is grados y and increasingly apu the rif mnbeing r y oonepm. y

In desorib I hereixigthe construction illustrat'ed in Figs; 1 to 4 of the dmwings, l desire to make it plain that the invention is not limited thereto, such construction bei merely a .single commeroml fom in whi the invention muy be ellectvely employed.

t as an incident of tho uc-V Having now described m inventmn, what V5.25

`of two arms adopted to bo connected at one -eml of each respectively with the bocly and wheels of a vehicle, the other ends of the arms ,being provided with enlarged heads, a stub-.shaft on which said heads are pivotally mounted, a phirality of Wedgeshaped members on the inner faces of each of said heads, members on 4opposingr faces being similarly spaced about the axis of said heads, with opposing members equidistant from the said axis and with the rounded apices of opv posing members normally in contact, and resilient means for forcing said heads toward each other, substantially as set forth.

2. In a shoekpreventer, the combination of two. arms adapted to be connected at one end of each respectively with the body and wheels ofa vehicle, the other ends of the arms being provided. with enlarged heads, a stub-shaft on which said heads are pivotally mounted, a` plate on the inner side of one of said heads, pivoted on said stub-shaft, Wedge-shaped members on the opposing faces of said plate and the second of saidY heads, `equi-distant from the axis of said plate and heads, and v'normally contactingI at their apices, adjustable devices for securing said plate to the first of said two arms in adjusted angular position, so that said wedge-shaped members will Contact nor-` mally witheach other at their apiees, and resilient means for forcing the irst head Iand plate and second' head toward each other, substantially as set forth.

3. In a shock preventer, the combination with two arms pivotally connected at their ends respectively with the body and wheels of a vehicle, their other ends being provided with enlarged beads, of a wedge-shaped member on the inner side of one of said heads, a wedgeshaped member on the inner side of the other of said heads, said heads being pivotally connected and said wedgeshaped members being normally in contact at their apices, means for adjusting the angular position of the wedge-shaped member on one of said heads relatively to the Correspondinp,r member on the other head to insure normal contaet of said members at their apiccs, and mechanism for holding said wedge-shaped members in Contact under pressure, substantially as described.

This specification signed-and witnessed this 20th day of January, 1915.

FRED SMTH.

Witnesses:

Ban'rlm B. Loan, HELEN M. N ou'rlInOP.

1,196,1ee l #1g wheels of a vehicie, the other ends of the arms belngiV provided with' enlarged heads,

a stubsshatt on which said heads are pivotaiiy inounteth a phirality of wedgefshapezi members "on the inner faces of `each of said heads, memberson opposing faces being similarly spaced about the axis oi: said heads, with opposing members eqnidistant from the said axis and with the rounrlel apices of opheacis, -equi-distant from the azi-is of said plate and heads, and vnormally contacting' at their apioes, adjustable devices for securing said lplate to the first ofsaid two arms in adjusted angular position, so4 that said Weflge-shaped members will contact non;

inally Witheach other at their spices, and resilient means for forcing the t head 'anilplate and second.' head towarc each other, substantially as set forth,

3. In a shock preventer, the combination with two arms pivotzilly connected at their ends respectively with the body and, wheels of a vehicle, their other ends being provirleci with enlarged heads, of a wedge-sliepen This specification signedand witnessed this 20th (lay of January, 1915.

' FRED SMT?. itnessesz Bnnrna B. Loin), HELEN M. Noii'rnnor.

, la posing members normally in contact, and member on the inner side of one oiV saitL resilient means for forcing said. heads' toheads, a Wedge-shaped member on the inner Ward each other, substantially as set forthn sido of the other or' said heads, said heads 2. n a shock'preventer, the combination being pivotally connected anal sairi wedge of twoarms adapted to be connected at one shapedY members being norinaliy in Contact 15 end of each respectively with the body and at their apices7 means for adjusting; the an Wheels cfa' vehicle, the other ends of the guiar position ot' the wenige-shaped member arms being providedwith enlarged heads, a on one of. said heads relatively to the corre` stublshaft on which .saidl heads are pivotally spending member on the other heaclto in mounted, a plate on the inner side# of one sure normal Contact of said members at 'their `20 of said heads, pivoted on said stub-shaft, apices, and mechanism for holding. .saicl wedge-shaped membersnon -th'e opposing wedge-shaped members in Contact under faces of said plate and the second of said, pressure, substantially as (lescribecl. se

It is herebycertieci that in iiettersPatent No. Lisgranteri August 29, 19H5, upon the application of lFred; Smith, of Springale, Connecticut, for an improvement in Shock-Preventers for Vehicles and the Likej. errors appear in the printerl speci 4`fieation requiring correction as follows: Pagen 2, line 48, for the word l carrier reati car/vieri; sanie page, line im, for.. the Word restrain read restraint; and that 'the sai-dLettersl-gatent shouldbe reafl with these corrections thereinth'at the same may con'orm to lthe record ci the case in the ijatent Cice. i

i ASigned anti sealed `this 24th clay of October, A" D., 19.16.

' ,n W. n, naar,

{SEAL} i Acting Ccmmisceaer cfPatena.

Corrections' in Letters Patent No. 1,196,166.

It. is hereby certified that n Letters Patent No. 1,1Q6,1G6,granted August 29,1916,

upon the application of Fred Smith, of Springdale, Connecticut, for an improvament.

in Shock-Preventers for Vehicles and the Like, errors nppmu" in the printed spvci- 4 `ficationr requiring crrection as fmlmvs: Page 2, line 48, for the word Carrier rend carried; s111119 page, line 1115, for the word resnlnn read vr-fstrmnt; und that the said Letters Patnt should be read with thcsv colrecbions Lherein that the sume may ponform L6 the record of the case in the Patent Gffco.

Signed and sealed this 24th day of Oumbnr, A. D., 1916.

' F. W. H. CLAY,

A ating Commissioner of Patenta.

[SEAL] 

